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1. [TowerTalk] need advice on calculating coil Q (score: 1): Author: "John Keating" <john.keating@sbcglobal.net>; Date: Thu, 1 Mar 2018 10:46:15 -0800; I'm attempting to characterize an antenna coil. I have a meter than can measure at 100kHz, which indicated L = 13uH and Rs = 0.322 and Q = 25. Those would indicate X(L) = 8.17 ohms at 100kHz. The val; /archives//html/Towertalk/2018-03/msg00001.html (6,912 bytes)
2. Re: [TowerTalk] need advice on calculating coil Q (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Thu, 1 Mar 2018 11:12:15 -0800; No! Since you refer to this as an "antenna coil", I will assume it is air core. In that case, generally Q scales with square root of frequency. If it has Q=25 at 100 kHz, you can estimate that it wil; /archives//html/Towertalk/2018-03/msg00002.html (8,634 bytes)
3. Re: [TowerTalk] need advice on calculating coil Q (score: 1): Author: Bill Cotter <n4lg@qx.net>; Date: Fri, 02 Mar 2018 09:59:06 -0500; HP has some good reading for thinking about and measuring Q for circuit elements. www.hparchive.com/Boonton/BRC-The-Notebook-04.pdf www.hparchive.com/Boonton/Boonton-Manual-260A.pdf www.hparchive.com; /archives//html/Towertalk/2018-03/msg00003.html (9,788 bytes)

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